Rheann MacLaren, of Scotland, her son Harry were at a store picking out a new toy when a pink toy stroller immediately caught the 3-year-old boy's eye, she told InsideEdition.com.

"He spotted it and made a beeline for it. That's what he wanted to buy. He pushed it around for a while," she said.

As they approached the check-out line, the mother said another customer suddenly approached her son, who was distracted with his new toy.

"What have you got there? That's not a boy's toy— that's for girls," MacLaren recalled the woman say to her son without acknowledging her. "There's cars and dinosaurs over there."

Maclaren said Harry looked at the woman confused before responding, "Well, because I like it."

"It's as simple as that for him," the 25-year-old mother told IE.com. "It's not because it's a girl's toy or boy's toy, it was just really fun to play with."

The livid mom took to Facebook to recount her experience, writing that she was angered that the stranger attempted to "belittle" her son but was proud of her son's response.

"Am I worried? No, not in the slightest. My child will grow up a well-rounded, accepting boy who will NEVER feel pressured to conform to gender stereotypes," Harry's mom wrote.

She also wrote that even though her son's favorite toys are cars and trucks, Harry proudly pushed the pink stroller all the way home.

MacLaren told IE.com that her and her husband's stance on what toys their son could play with was not meant to be as contentious as it seemed: "It's never been something we've discussed. If he wants to play with a toy, then he can play with it.

"You should encourage your kids with whatever interests them. It doesn't make him any less of a boy."